The protagonist is not a time traveler, but the elite of the Republic of China who awakened to the "arms trading system" from the future of the parallel universe when they were about to die. He did not rely on force, but relied on "supply chain management" and "information gap" to become a god outside the battlefield. Every transaction he makes is a carefully designed economic war against the enemy. What he established was not an army, but a black intelligence and logistics system covering the entire country.
